Leica Biosystems LN22 - Manual (Page 41)

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5.2.4 Removal of the pump valves
The two lower pump valves (1) and (2) can be easily disassembled for
thorough drying. Valve (2) is located above valve (1).
• For disassembly, support the valves (1) and (2) valve block at the pipe
end with an Allen key no. 3 at the screw (3) and unscrew the brass
valves with a screwdriver.
• Dry the valves on a heating panel.
• Before reinstallation, check whether the ball moves inside the valve
by shaking it.
5. Cleaning and maintenance